Barrel type automatic separation floating and sinking test device

Abstract

The utility model relates to the technical field of coal layering, in particular to a barrel-shaped automatic separation floating and sinking test device which comprises a barrel body, a first driving mechanism, a second driving mechanism and a stirring mechanism, a containing cavity is formed in the barrel body, at least one middle-layer gate plate is arranged in the containing cavity, a bottom-layer gate plate is arranged at the bottom of the containing cavity, and the bottom-layer gate plate is arranged on the bottom-layer gate plate. The middle-layer flashboard and the bottom-layer flashboard are each provided with a through hole allowing floating and sinking liquid to penetrate through. According to the utility model, coal samples are poured into the accommodating cavity, the floating and sinking test device is directly immersed into floating and sinking liquid, the stirring mechanism stirs and stands for a period of time, after the coal samples are layered, the first driving mechanism controls the middle-layer flashboard to be closed, the upper-layer coal samples and the lower-layer coal samples are respectively arranged in the two cavities which are spaced up and down, and the floating and sinking test device is moved out; after the bottom-layer flashboard is controlled to be opened through the second driving mechanism in sequence and the bottom-layer coal sample is discharged, the middle-layer flashboard is controlled to be opened through the first driving mechanism and the upper-layer coal sample is discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of coal layering, and particularly relates to a barrel-shaped automatic separation float-sink test device. Background Art

[0002] The float-sink test of coal is a test that uses Archimedes' principle and heavy medium liquids or heavy suspension liquids with different relative densities to divide test samples into various products with different relative densities. Thereby, the yields and quality characteristics of different density grades can be obtained, the washability of coal can be understood, and technical basis can be provided for determining separation methods, process flows, and equipment requirements in the design of coal preparation plants.

[0003] The existing float-sink test device includes a barrel body, a filter screen is provided at the bottom of the barrel body, a feeding port is opened at the top thereof, and the separation tool is a stainless steel ladle.

[0004] When conducting a float-sink test on a coal sample, the test device is placed in the float-sink liquid, and it is necessary to manually hold a stirring rod to stir the float-sink liquid. After standing for stratification, the stratified coal samples are manually fished out. This is time-consuming and laborious, and during these processes, the staff is prone to contact with the corrosive float-sink liquid, resulting in low safety. Summary of the Utility Model

[0005] (1) The problem to be solved by the utility model is: how to replace manual stirring of the float-sink liquid and coal samples and achieve automatic stratification.

[0006] (2) Technical Solution

[0007] A barrel-shaped automatic separation float-sink test device provided by the utility model includes a barrel body, a first driving mechanism, a second driving mechanism, and a stirring mechanism. There is an accommodation cavity inside the barrel body;

[0008] At least one middle gate plate is provided in the accommodation cavity, a bottom gate plate is provided at the bottom of the accommodation cavity, and through holes for the float-sink liquid to pass through are provided on both the middle gate plate and the bottom gate plate;

[0009] At least one of the middle gate plates divides the accommodation cavity into at least two chambers spaced up and down;

[0010] The first driving mechanism is used to control the independent opening, closing, or shutting of each middle gate plate;

[0011] The second driving mechanism is used to control the opening, closing, or shutting of the bottom gate plate;

[0012] The stirring mechanism is used to stir the coal samples and the float-sink liquid in the accommodation cavity.

[0013] According to an embodiment of the present utility model, the stirring mechanism includes a first gas spray head, a jet port communicating with the accommodation cavity is provided at the lower part of the barrel body, and the first gas spray head is installed at the jet port for blowing air flow into the accommodation cavity.

[0014] According to an embodiment of the present utility model, a plurality of middle gate plates are provided, and along the height direction of the barrel body, the plurality of middle gate plates are arranged at intervals in sequence;

[0015] The first driving mechanism corresponds to each middle gate plate one by one.

[0016] According to an embodiment of the present utility model, the middle gate plate is rotatably connected to the inner wall of the barrel body;

[0017] When the middle gate plate rotates to the first state, the middle gate plate is horizontally arranged to separate the accommodation cavity;

[0018] When the middle gate plate rotates to the second state, the middle gate plate is vertically arranged to open the accommodation cavity.

[0019] According to an embodiment of the present utility model, the middle gate plate includes a first plate body and a second plate body;

[0020] On two opposite side walls of the barrel body, a first rotating shaft and a second rotating shaft are respectively provided, and the axes of the first rotating shaft and the second rotating shaft are parallel to each other;

[0021] One end of the first plate body is rotatably connected to the inner wall of the barrel body through the first rotating shaft, and one end of the second plate body is rotatably connected to the inner wall of the barrel body through the second rotating shaft;

[0022] In the first state, the other ends of the first plate body and the second plate body are connected to each other to separate the accommodation cavity;

[0023] In the second state, the other end of the first plate body is located below the first rotating shaft, the other end of the second plate body is located below the second rotating shaft, and the first plate body and the second plate body are separated to open the accommodation cavity.

[0024] According to an embodiment of the present utility model, the automatic separation floating and sinking test device further includes a limit pin, one end of the limit pin is connected to the inner wall of the barrel body, and the other end is located above the middle gate plate for restricting the upward rotation of the middle gate plate.

[0025] According to an embodiment of the present utility model, a backing plate is provided below the middle gate plate, and the backing plate is fixedly connected to the side wall of the barrel body; when the middle gate plate rotates to the second state, the middle gate plate is in contact with the backing plate.

[0026] According to an embodiment of the present utility model, the first driving mechanism includes two driving components, one of the driving components is used to drive the first rotating shaft to rotate around its axis, and the other driving component is used to drive the second rotating shaft to rotate around its axis;

[0027] The first driving component includes a first air cylinder, a first connecting rod, a transmission connecting rod, an extension plate and a fixing block;

[0028] The extension plate is fixedly installed on the top of the barrel body, and the fixing block is fixedly installed on the side wall of the barrel body;

[0029] The fixed end of the first air cylinder is movably connected to the extension plate, its pushing end is fixedly connected to one end of the first connecting rod, the other end of the first connecting rod is rotatably connected to one end of the transmission connecting rod, the first rotating shaft sequentially passes through the side wall of the barrel body and the fixing block and is fixedly connected to the other end of the transmission connecting rod, and the first rotating shaft is rotatably connected to the fixing block;

[0030] The second driving mechanism has the same structure as the first driving mechanism.

[0031] According to an embodiment of the present utility model, a cleaning mechanism for cleaning coal samples is provided at the top of the accommodating cavity;

[0032] The cleaning mechanism includes a second gas spray head communicated with the accommodating cavity and a flushing joint communicated with the accommodating cavity, and both the second gas spray head and the flushing joint are provided at the top of the barrel body;

[0033] The second gas spray head is used to introduce gas into the accommodating cavity to de-liquify the coal samples in the accommodating cavity, and the flushing joint is used to introduce clean water into the accommodating cavity to wash the coal samples in the accommodating cavity.

[0034] According to an embodiment of the present utility model, the automatic separation and floating-sinking test device further includes an inlet gate and a third driving mechanism. An inlet is provided at the top of the barrel body, and the inlet gate is installed at the inlet. The third driving mechanism is used to control the opening and closing of the inlet gate.

[0035] The beneficial effects of the present utility model:

[0036] Pour the coal sample into the accommodation cavity, directly immerse the floating and sinking test device into the floating and sinking liquid, stir through the stirring mechanism, replace manual stirring of the floating and sinking liquid with a handheld stirring rod, after standing for a period of time and the coal sample is stratified, the first driving mechanism controls the middle layer gate to close, place the upper and lower layer coal samples in two spaced chambers respectively, remove the floating and sinking test device, and sequentially control the bottom layer gate to open through the second driving mechanism, after discharging the bottom layer coal sample, then control the middle layer gate to open through the first driving mechanism to discharge the upper layer coal sample. There is no need for manual fishing, which saves time and effort, and there is no need for manual operation throughout the process. The staff will not come into contact with the corrosive floating and sinking liquid, improving safety. Brief Description of the Drawings

[0037] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 Is a three-dimensional view provided by an embodiment of the present invention;

[0039] Figure 2 Is a three-dimensional sectional view provided by an embodiment of the present invention;

[0040] Figure 3 Is a three-dimensional view of the first driving mechanism (or the second driving mechanism) provided by an embodiment of the present invention;

[0041] Figure 4 Is a three-dimensional view of the third driving mechanism and the inlet gate provided by an embodiment of the present invention.

[0042] Reference Signs: 1, barrel body; 2, inlet gate; 3, middle layer gate; 4, bottom layer gate; 5, third driving mechanism; 501, second cylinder; 502, connecting shaft; 503, second connecting rod; 6, first driving mechanism; 601, first cylinder; 602, first connecting rod; 603, transmission connecting rod; 604, extension plate; 605, fixing block; 7, second driving mechanism; 8, first gas spray head; 9, cleaning mechanism; 901, flushing joint; 902, second gas spray head; 10, limit pin; 11, backing plate. Detailed Embodiments

[0043] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0044] As Figures 1 - 4 shown, an embodiment of the present utility model provides a barrel-shaped automatic separation floating and sinking test device, which includes a barrel body 1, a first driving mechanism 6, a second driving mechanism 7, and a stirring mechanism. The barrel body 1 has a receiving cavity.

[0045] At least one middle layer gate plate 3 is provided in the receiving cavity, and a bottom layer gate plate 4 is provided at the bottom of the receiving cavity. Through holes for the floating and sinking liquid to pass through are provided on both the middle layer gate plate 3 and the bottom layer gate plate 4.

[0046] At least one middle layer gate plate 3 divides the receiving cavity into at least two chambers spaced up and down.

[0047] The first driving mechanism 6 is used to control the independent opening, closing or shutting of each middle layer gate plate 3.

[0048] The second driving mechanism 7 is used to control the opening, closing or shutting of the bottom layer gate plate 4.

[0049] The stirring mechanism is used to stir the coal sample and the floating and sinking liquid in the receiving cavity.

[0050] Pour the coal sample into the receiving cavity, directly immerse the floating and sinking test device into the floating and sinking liquid, stir through the stirring mechanism, instead of manually holding a stirring rod to stir the floating and sinking liquid by hand. After standing for a period of time, when the coal sample is stratified, the first driving mechanism 6 controls the middle layer gate plate 3 to close, places the upper and lower layer coal samples in two chambers spaced up and down respectively, removes the floating and sinking test device, and sequentially controls the bottom layer gate plate 4 to open through the second driving mechanism 7. After discharging the bottom layer coal sample, then control the middle layer gate plate 3 to open through the first driving mechanism 6 to discharge the upper layer coal sample. There is no need for manual fishing, which saves time and effort, and there is no need for manual operation throughout the process. The staff will not come into contact with the corrosive floating and sinking liquid, improving safety.

[0051] In this embodiment, the barrel body 1 is a square barrel assembled by splicing stainless steel plates.

[0052] According to an embodiment of the present utility model, the stirring mechanism includes a first gas spray head 8. A gas injection port communicating with the receiving cavity is provided at the lower part of the barrel body 1. The first gas spray head 8 is installed at the gas injection port and is used to blow air into the receiving cavity.

[0053] One end of the first gas nozzle 8 is installed with a first gas valve. The first gas valve is connected to a blowing device through a first connecting pipe, and compressed air is blown into the accommodating cavity through a jet port communicating with the accommodating cavity to stir the coal sample and the floating and sinking liquid, replacing manual stirring of the floating and sinking liquid with a stirring rod, which saves time and effort and has a good stirring effect.

[0054] Wherein, multiple first gas nozzles 8 can also be provided. Each first gas nozzle 8 is externally connected to a connecting pipe, and compressed air is blown into the accommodating cavity to stir the coal sample and the floating and sinking liquid.

[0055] Furthermore, two first gas nozzles 8 are provided and are located on the same side of the barrel 1.

[0056] Of course, in this embodiment, the stirring mechanism can also be in other forms. For example, the stirring mechanism includes a motor installed on the top of the barrel 1. The output end of the motor passes through the top wall of the barrel 1 and is fixedly connected with a stirring shaft. Along the length direction of the stirring shaft, a plurality of stirring plates are connected to the stirring shaft, thereby realizing the stirring of the floating and sinking liquid. Its purpose does not deviate from the design concept of the present invention. Therefore, it should fall within the protection scope of the present invention.

[0057] According to an embodiment of the present invention, a plurality of middle gate plates 3 are provided. Along the height direction of the barrel 1, the plurality of middle gate plates 3 are sequentially arranged at intervals;

[0058] The first driving mechanism 6 corresponds to the middle gate plate 3 one by one.

[0059] By providing a plurality of middle gate plates 3, the accommodating cavity can be divided into a plurality of vertically spaced chambers, thereby being applicable to multi-layer stratification of coal samples. Each middle gate plate 3 corresponds to a first driving mechanism 6, so that each middle gate plate 3 can be independently controlled;

[0060] Furthermore, three middle gate plates 3 are provided. Along the direction from bottom to top, the middle gate plates 3 are sequentially denoted as the first gate plate, the second gate plate, and the third gate plate. After the coal sample stratification is completed, each first driving mechanism 6 controls the corresponding first gate plate, second gate plate, and third gate plate to close and divide the accommodating cavity. After the automatic separation floating and sinking test device is fished out from the floating and sinking liquid, first open the bottom gate plate 4. After the coal sample in the chamber between the first gate plate and the bottom gate plate 4 is poured out and sorted, then sequentially open the first gate plate, the second gate plate, and the third gate plate to collect the stratified coal samples respectively.

[0061] According to an embodiment of the present invention, the middle gate plate 3 is rotatably connected to the inner wall of the barrel 1;

[0062] When the middle gate plate 3 rotates to the first state, the middle gate plate 3 is horizontally arranged to divide the accommodating cavity;

[0063] When the middle gate plate 3 rotates to the second state, the middle gate plate 3 is vertically arranged to open the accommodation cavity.

[0064] Furthermore, the middle gate plate 3 includes a first plate body and a second plate body;

[0065] A first rotating shaft and a second rotating shaft are respectively arranged on two opposite side walls of the barrel body 1, and the axes of the first rotating shaft and the second rotating shaft are parallel to each other;

[0066] One end of the first plate body is rotationally connected to the inner wall of the barrel body 1 through the first rotating shaft, and one end of the second plate body is rotationally connected to the inner wall of the barrel body 1 through the second rotating shaft;

[0067] In the first state, the other ends of the first plate body and the second plate body are connected to each other to separate the accommodation cavity;

[0068] In the second state, the other end of the first plate body is located below the first rotating shaft, the other end of the second plate body is located below the second rotating shaft, and the first plate body and the second plate body are separated to open the accommodation cavity.

[0069] Certainly, the first plate body and the second plate body have the same thickness. The width direction of the first plate body, the width direction of the second plate body, and the width direction of the accommodation cavity are all the same as the axis direction of the first rotating shaft, and the sum of the width of the first plate body and the width of the second plate body is adapted to the width of the accommodation cavity.

[0070] By setting the middle gate plate 3 as the first plate body and the second plate body, it can be ensured that too much space of the cavity from the middle gate plate 3 to the bottom gate plate 4 will not be occupied, thereby reducing the height of the barrel body 1 and saving costs.

[0071] Certainly, in this embodiment, the middle gate plate 3 can also be in other forms. For example, the middle gate plate is a third plate body. When the third plate body rotates to the vertical state, the accommodation cavity is opened to allow the coal sample to stand and stratify. When the third plate body is parallel to the horizontal plane, the three side edges of the third plate body can contact the three side walls of the accommodation cavity to separate the accommodation cavity. Its gist does not deviate from the design concept of the present invention. Therefore, it should fall within the protection scope of the present invention.

[0072] As Figure 2 shown, according to an embodiment of the present invention, a backing plate 11 is arranged below the middle gate plate 3, and the backing plate 11 is fixedly connected to the side wall of the barrel body 1; when the middle gate plate 3 rotates to the second state, the middle gate plate 3 is in contact with the backing plate 11. The width of the backing plate 11 is the same as the width direction of the middle gate plate 3, and the width of the backing plate 11 is greater than the width of the middle gate plate 3;

[0073] When the middle gate plate 3 rotates and is vertically arranged, there is a gap between the middle gate plate 3 and the side wall of the barrel body 1. By arranging a backing plate 11 below the middle gate plate 3, it can prevent the lighter coal samples from entering the gap during coal sample stratification and floating smoothly. The bottom surface of the backing plate 11 forms an acute angle with the side wall of the barrel body 1, so that the coal samples will not be blocked by the bottom surface of the backing plate 11 when floating up.

[0074] As Figure 3 shown, according to an embodiment of the present invention, the first driving mechanism 6 includes two driving components, one of which is used to drive the first rotating shaft to rotate around its axis, and the other is used to drive the second rotating shaft to rotate around its axis;

[0075] The first driving component includes a first cylinder 601, a first connecting rod 602, a transmission connecting rod 603, an extension plate 604 and a fixing block 605;

[0076] The extension plate 604 is fixedly installed on the top of the barrel body 1, and the fixing block 605 is fixedly installed on the side wall of the barrel body 1;

[0077] The fixed end of the first cylinder 601 is movably connected to the extension plate 604, its pushing end is fixedly connected to one end of the first connecting rod 602, the other end of the first connecting rod 602 is rotatably connected to one end of the transmission connecting rod 603, the first rotating shaft sequentially passes through the side wall of the barrel body 1 and the fixing block 605 and is fixedly connected to the other end of the transmission connecting rod 603, and the first rotating shaft is rotatably connected to the fixing block 605; wherein, the fixed end of the first cylinder 601 is rotatably connected to the extension plate 604.

[0078] Since the first rotating shaft sequentially passes through the side wall of the barrel body 1 and the fixing block 605 and is fixedly connected to the transmission connecting rod 603, the transmission connecting rod 603 can rotate around the axis of the first rotating shaft. When the pushing end of the first cylinder 601 extends and drives the first connecting rod 602 to push downward, the first cylinder 601 rotates relative to the extension plate 604, so that the distance from the pushing end of the first cylinder 601 to the plane where the side wall of the barrel body 1 is located is greater than the distance from its fixed end to the plane where the side wall of the barrel body 1 is located (at this time, the first cylinder 601 forms a certain angle with the vertical plane. Therefore, the transmission connecting rod 603 will not interfere with the downward movement of the first cylinder 601), and then one end of the transmission connecting rod 603 moves downward, so that the first rotating shaft rotates around its own axis, and then drives the middle gate plate 3 to rotate around the axis of the first rotating shaft to the horizontal state, separating the accommodation cavity and separating the stratified coal samples into different chambers. When the first cylinder 601 resets, the middle gate plate 3 rotates around the axis of the first rotating shaft to the vertical state, opening the accommodation cavity.

[0079] The design of the first driving mechanism 6 enables the first cylinder 601 to be located above the floating liquid and not in contact with the floating liquid, improving the service life of the first cylinder 601.

[0080] The second driving mechanism 7 has the same structure as the first driving mechanism 6, and will not be elaborated here.

[0081] As Figure 2 shown, further, the automatic separation and flotation-sinking test device further includes a limit pin 10. One end of the limit pin 10 is connected to the inner wall of the barrel 1, and the other end is located above the middle gate plate 3, and is used to limit the upward rotation of the middle gate plate 3. The first cylinder 601 pushes downward to drive the middle gate plate 3 to move upward until the middle gate plate 3 contacts the limit pin 10, which means that the middle gate plate 3 is in place for closing.

[0082] Of course, in this embodiment, the first driving mechanism 6 can also be in other forms. For example, the first driving mechanism 6 includes an electric push rod and a rotating rod. The fixed end of the electric push rod is fixedly connected to the top of the barrel 1, the pushing end is fixedly connected with a strip plate, the lower end of the strip plate is fixedly connected with a cross plate, a strip hole is opened on the cross plate, the length direction of the strip hole is parallel to the horizontal plane, one end of the rotating rod is fixedly connected with a limit block, the limit block is slidably connected in the strip hole, and the other end of the rotating rod is fixedly connected with the first rotating shaft. By pushing the electric push rod downward, the cross plate is driven to move vertically downward. At this time, under the dual action of the rotating rod and the strip hole, the limit block slides in the strip hole and moves downward along with the cross plate at the same time, so that the rotating rod drives the first rotating shaft to rotate, and then drives the middle gate plate 3 to close. Its purpose does not deviate from the design idea of the present invention, so it should belong to the protection scope of the present invention.

[0083] As Figure 3 shown, according to an embodiment of the present invention, a cleaning mechanism 9 for cleaning the coal sample is provided at the top of the accommodation cavity, and the cleaning mechanism 9 is used to remove the flotation-sinking liquid adhered to the surface of the coal sample;

[0084] The cleaning mechanism 9 includes a second gas spray head 902 communicated with the accommodation cavity and a flushing joint 901 communicated with the accommodation cavity, and both the second gas spray head 902 and the flushing joint 901 are arranged at the top of the barrel 1;

[0085] The second gas spray head 902 is used to introduce gas into the accommodation cavity to de-liquify the coal sample in the accommodation cavity, and the flushing joint 901 is used to introduce clean water into the accommodation cavity to wash the coal sample in the accommodation cavity.

[0086] Through the second gas spray head 902, when the barrel 1 is lifted from the flotation-sinking liquid, the liquid on the surface of the coal sample can be blown away through the second gas spray head 902, and the coal sample can be washed through the flushing joint 901 to wash away the remaining flotation-sinking liquid on the coal sample.

[0087] A second gas nozzle 902 is provided with a second gas valve at one end far from the barrel body 1. The other end of the second gas valve is connected to a blowing device through a second connecting pipe. The first gas nozzle 8 and the second gas nozzle 902 can share the same blowing device or can use different blowing devices. The blowing device is a prior art and will not be elaborated here again. A water flushing connector 901 is provided with a water valve at one end far from the barrel body 1. The other end of the water valve is connected to a water tap through a water pipe.

[0088] According to an embodiment of the present invention, the automatic separation floating and sinking test device further includes an inlet gate 2 and a third driving mechanism 5. An inlet is provided at the top of the barrel body 1, and the inlet gate 2 is installed at the inlet. The third driving mechanism 5 is used to control the opening, closing or shutting of the inlet gate 2.

[0089] As Figure 4 shown, the third driving mechanism 5 includes a second air cylinder 501, a connecting shaft 502, a second connecting rod 503 and two mounting blocks. The output end of the second air cylinder 501 is rotatably connected to one end of the second connecting rod 503, and the other end of the second connecting rod 503 is fixedly connected to the side surface of the connecting shaft 502;

[0090] The length direction of the second connecting rod 503 is perpendicular to the axis direction of the connecting shaft 502, and the length direction of the second air cylinder 501 is perpendicular to the axis direction of the connecting shaft 502. Moreover, the second connecting rod 503 and the inlet gate 2 are respectively located on both sides of the connecting shaft 502;

[0091] The two mounting blocks are fixedly connected to the barrel body 1, and the connecting shaft 502 is rotatably connected between the two mounting blocks. The connecting shaft 502 is fixedly connected to the inlet gate 2.

[0092] The fixed end of the second air cylinder 501 is rotatably connected to the top of the barrel body 1 through a connecting plate. By driving one end of the second connecting rod 503 to move downward by the second air cylinder 501, since the other end of the second connecting rod 503 is rotatably connected to the side wall of the barrel body 1, therefore, the second connecting rod becomes rotatable about the axis of the connecting shaft 502, and further the connecting shaft 502 is driven by the second connecting rod 503 to rotate about its own axis. Its working principle is the same as that of the first driving mechanism 6 and will not be elaborated here again.

[0093] It should be noted that the automatic separation floating and sinking test device further includes a controller. The first gas valve, the second gas valve, the water valve, the first air cylinder 601, the second driving mechanism 7 and the second air cylinder 501 are all electrically connected to the controller. The controller is a wireless controller and can be remotely operated.

[0094] In the initial state, the middle gate 3 is opened to open the accommodation chamber, the inlet gate 2 is opened, and the bottom gate 4 is closed. The coal sample is poured into the accommodation chamber. The controller controls the third driving mechanism 5 to drive the inlet gate 2 to close, and directly immerses the float-sink test device into the float-sink liquid. The controller controls the first air valve to open, and fills the accommodation chamber with compressed air through the first gas nozzle 8 to stir the coal sample and the float-sink liquid, replacing manual stirring of the float-sink liquid with a stirring rod. After closing the first air valve and allowing the coal sample to stratify for a period of time, the first driving mechanism 6 controls the middle gate 3 to close, placing the upper and lower coal samples in two separately partitioned chambers. The float-sink test device is removed, and the float-sink liquid in the barrel 1 leaks out through multiple through-holes opened on the middle gate 3 and the bottom gate 4. The second air valve is opened, and air is blown into the accommodation chamber through the second gas nozzle 902 to blow off the float-sink liquid adhering to the surface of the coal sample. After closing the second air valve, the water valve is opened, and the coal sample is rinsed with clean water through the flushing joint 901. After rinsing, the water valve is closed, and the second air valve is opened again. The second gas nozzle 902 blows away the liquid on the surface of the coal sample. After closing the second air valve, the bottom gate 4 is first opened by controlling the second driving mechanism 7 in sequence to discharge the bottom coal sample, and then the middle gate 3 is opened by controlling the first driving mechanism 6 to discharge the upper coal sample. There is no need for manual fishing, which saves time and effort, and there is no need for manual operation throughout the process. The staff will not come into contact with the corrosive float-sink liquid, improving safety.

[0095] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0096] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise stated, the meaning of "multiple" is two or more.

[0097] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A barrel-shaped automatic separation floating and sinking test device, characterized in that, It includes a barrel body (1), a first driving mechanism (6), a second driving mechanism (7) and a stirring mechanism. The barrel body (1) has a receiving cavity inside. At least one middle-layer gate plate (3) is arranged in the receiving cavity, and a bottom-layer gate plate (4) is arranged at the bottom of the receiving cavity. Through holes for the floating and sinking liquid to pass through are provided on both the middle-layer gate plate (3) and the bottom-layer gate plate (4). At least one of the middle-layer gate plates (3) divides the receiving cavity into at least two chambers spaced up and down. The first driving mechanism (6) is used to control the opening, closing or independent opening and closing of each middle-layer gate plate (3). The second driving mechanism (7) is used to control the opening and closing of the bottom-layer gate plate (4). The stirring mechanism is used to stir the coal sample and the floating and sinking liquid in the receiving cavity.

2. The barrel-shaped automatic separation flotation-sinking test device according to claim 1, wherein, The stirring mechanism includes a first gas spray head (8). An air jet port communicating with the receiving cavity is provided at the lower part of the barrel body (1), and the first gas spray head (8) is installed at the air jet port for blowing air into the receiving cavity.

3. The barrel-shaped automatic separation floating and sinking test device according to claim 1, characterized in that, A plurality of middle-layer gate plates (3) are provided, and along the height direction of the barrel body (1), the plurality of middle-layer gate plates (3) are arranged at intervals in sequence. The first driving mechanism (6) corresponds to the middle-layer gate plates (3) one by one.

4. The barrel-shaped automatic separation floating and sinking test device according to claim 1, characterized in that, The middle-layer gate plate (3) is rotationally connected to the inner wall of the barrel body (1). When the middle-layer gate plate (3) rotates to the first state, the middle-layer gate plate (3) is horizontally arranged to divide the receiving cavity. When the middle-layer gate plate (3) rotates to the second state, the middle-layer gate plate (3) is vertically arranged to open the receiving cavity.

5. A barrel-shaped automatic separation flotation-sinking test device according to claim 4, characterized in that, The middle-layer gate plate (3) includes a first plate body and a second plate body. On two opposite side walls of the barrel body (1), a first rotating shaft and a second rotating shaft are respectively provided, and the axes of the first rotating shaft and the second rotating shaft are parallel to each other. One end of the first plate body is rotationally connected to the inner wall of the barrel body (1) through the first rotating shaft, and one end of the second plate body is rotationally connected to the inner wall of the barrel body (1) through the second rotating shaft. In the first state, the other ends of the first plate body and the second plate body are joined to divide the receiving cavity. In the second state, the other end of the first plate body is located below the first rotating shaft, the other end of the second plate body is located below the second rotating shaft, and the first plate body and the second plate body are separated to open the receiving cavity.

6. The barrel-shaped automatic separation floating and sinking test device according to claim 4, characterized in that, The automatic separation floating and sinking test device further includes a limit pin (10). One end of the limit pin (10) is connected to the inner wall of the barrel body (1), and the other end is located above the middle-layer gate plate (3) for restricting the upward rotation of the middle-layer gate plate (3).

7. A barrel-shaped automatic separation floating and sinking test device according to claim 4, characterized in that, A backing plate (11) is arranged below the middle-layer gate plate (3), and the backing plate (11) is fixedly connected to the side wall of the barrel body (1). When the middle-layer gate plate (3) rotates to the second state, the middle-layer gate plate (3) abuts against the backing plate (11).

8. A barrel-shaped automatic separation floating and sinking test device according to claim 5, characterized in that, The first driving mechanism (6) includes two driving components. One of the driving components is used to drive the first rotating shaft to rotate around its axis, and the other driving component is used to drive the second rotating shaft to rotate around its axis. The first driving component includes a first cylinder (601), a first connecting rod (602), a transmission connecting rod (603), an extension plate (604), and a fixing block (605); The extension plate (604) is fixedly installed at the top of the barrel body (1), and the fixing block (605) is fixedly installed on the side wall of the barrel body (1); The fixed end of the first cylinder (601) is movably connected to the extension plate (604), its pushing end is fixedly connected to one end of the first connecting rod (602), the other end of the first connecting rod (602) is rotatably connected to one end of the transmission connecting rod (603), the first rotating shaft sequentially passes through the side wall of the barrel body (1) and the fixing block (605) and is fixedly connected to the other end of the transmission connecting rod (603), and the first rotating shaft is rotatably connected to the fixing block (605); The second driving mechanism (7) has the same structure as the first driving mechanism (6).

9. The barrel-shaped automatic separation flotation-sinking test device according to claim 1, wherein, A cleaning mechanism (9) for cleaning the coal sample is provided at the top of the accommodating cavity; The cleaning mechanism (9) includes a second gas spray head (902) communicated with the accommodating cavity and a flushing joint (901) communicated with the accommodating cavity, and both the second gas spray head (902) and the flushing joint (901) are provided at the top of the barrel body (1); The second gas spray head (902) is used to introduce gas into the accommodating cavity to de-liquify the coal sample in the accommodating cavity, and the flushing joint (901) is used to introduce clean water into the accommodating cavity to wash the coal sample in the accommodating cavity.

10. The barrel-shaped automatic separation flotation-sinking test device according to claim 1, characterized in that, The automatic separation and floating-sinking test device further includes an inlet gate (2) and a third driving mechanism (5). An inlet is provided at the top of the barrel body (1), and the inlet gate (2) is installed at the inlet. The third driving mechanism (5) is used to control the opening, closing or shutting of the inlet gate (2).

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